Water-heating system.



E.. GROVE.

WATER HEATING SYSTEM.

APPLICATION FILED MAR. 13.71918. 1,282,072. Patented oct. 2,2, 1918.

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EUGENE GROVE, OF WEST LAFAYETTE, INDIANA.

WATER-HEATING SYSTEM.

T0 all whom t may concern.'

Be it known that I, EUGENE Gnovn, a citi- Zen of the United States, residing at `West Lafayette, in the county of Tippecanoe and State of Indiana, have invented a certain new and useful Improvement in Water- Heating Systems, of which the following is a full, clear, concise, and exact description.

My' invention relates to water heating and supply systems employing supply tanks, piping serially connected with said tanks for the circulation of the water that is to be heated, and means (such as the combustion space of a furnace) upon the exterior of the piping for heating a portion thereof.

One result accomplished by the invention is the prevention ofv the accumulation of precipitates, such as lime, in the piping or the removal of such precipitates in the event of their collection in the-piping. I am also enabled to secure'a more direct flow of water from the heated portion of the piping through theoutlet piping that branches from the aforesaid piping.

All of the objects and advantages of the system of my invention are realized by providing a valve in the first aforesaid piping, between the place of connection of thek outlet piping therewith and the normal outlet end of the supply tank whereby the flow of water through the-rst aforesaid piping may be reversed when water flows through the outlet piping, and another valve coupled with the aforesaid valve and normally obstructing the iiow of water to the outlet piping and actuatable by water flowing to the outlet piping to permit passage of water to this pipingand to close the first aforesaid valve.

1 will explain my invention more fully by reference to the accompanying drawing showing the preferred embodiment thereof and in which Figure 1 is a view, somewhatdiagrammatic, illustrating the system of my invention;A Fig. 2-is a longitudinal sectional view of parts of thewater heating and outlet piping and the associate'valving mechn anism; and Fig. 3 is a view' on linel 3 3- of Fig. 2.

Like parts are indicated by similar characters of reference throughout the different figures. l p f The upright supply tank 1 is closed at its ends except wherepipes pertaining thereto have communication therewith. The piping 2 extends into the tank y1 and terminates near Specification of Letters Patent.

Patented Oct. 22, 1918.

Application filed March 13, 1918. Serial No. 222,091.

the bottom thereof, water under city pres sure or otherwise supplied flowing through the piping 2 into the tank 1. As the piping charge the heated water into the tank, the` portion 4 of the piping being heated by some heating means upon the exterior of the iping such, for example, as the fuel comustion space in a furnace 6. 'When no water is being drawn from the system the water in the piping 3, 4, 5 flows in the direction indicated by the arrows shown by full lines, the cold water then always passing from the lower or normal outlet end of the tank 1 while the heated water flows into the upper or normal inlet end of the tank. The outlet piping 7 branches from the piping 3, 4,5 at a place between the normal outlet of the tank and the heatingV means 6, this piping 7 being provided with a faucet or other valve 8 for controlling the discharge of water from the' piping 7. The fitting whereby the pipe sections 4, 5 and the piping 7 are coupled is in the nature of a valve chamber 9. whose upper part constitutes a part of the piping 7, whose lower end portion 10 constitutes a part of the pipe section 5 and whose intermediate portion 11 constitutes a part of the pipe section 4, all of these pipe portions being thrown into communication or being adapted to be thrown into communication by means of the valve chamber 9 and the valving mechanism disposed in this chamber. A wall 12 is provided in the valve chamber 10 below the pipe section 4. This wall 12 is provided with a valve opening 13 which may be closed by a valve 14. The valve 14 is normally open,

that is, this'valve is open when no water is of the tank 1, one result being that the cold water cannot ind passage troni lower end ot the tank to the outlet piping. .nother result which ensues is the reversal of the direction or" low oi water through the pipe sections 3, i whereby lime or other precipitate in these piping sections is prevented from accumulating or is washed away in the event ot its accumulation. ltdoreover the water which is supplied lto the outlet piping is taken directly :trom the pipe section l us'; after it has been heated to the highest de giee possible by the heating means it will be observed that the water which is being supplied to the pipe section when water is iiowing through the outlet piping 7; is taken from the upper end ot the tank '1 where the water in this tank is hottest whereby the water which i'iows through the outlet piping is heated to a higher degree than the water passing to the pipe section AI were taken from the lower end of the tank 1 where the water is coolest. The direction in which the water hows *from the top of the tank through the piping 3, l and 7 is indicated by the dotted arrows.

ln the preferred embodiment ot the invention the valve lilis automatically operated; the mechanism i'or efnlecting the auto matic operation ot this valve being preierably that which is illustrated in detail in l? ig. 2. A sub-valve chamber 15 has its` lower end in constant communication with the bore of the main valve chamber 10 and the lower branch of the pipe section 1l where this lower branch is assembled with said main valve chamber. A valve opening 1S is provided in a side of the sub-valve chamber 15. A valve 17 normally closes the valve opening 16 whereby there is normally no communication between the outlet piping Y and the water circulating piping 3; e; The valve l? normally rests upon a screw or pin 1S but when the valve 8 is opened the valve 1T will rise troni its support 18 to open 'the valve passage 16 to permit water to iiow through the outlet pipe 7. The valve 17 preferably surrounds the stein 19 of the valve 1li and is movable along said stem. lvl/Then the valve 17 rises it presses upon the sprinvf 2O which is connected at its upper end with the valve stein 19 through the intermediation oi the collar 21 fired upon said valve stem. By this construction, when the valve 1T is raised the valve stem 19 will be raised through the intermediation oi the spring :2O whereby the valve 11i will be closed, the `closed position of this valve being indicated by dotted lines in Fig. f2. Whenever the valve in the faucet 8 is @pen the water will be irst odective to rai-.se the valve 1T first to close the valve il and thereafter to open the valve passage 16. the valve 17 having sutlicient lap to permit the valve 14 to be closed before the valve 1T is opened aora whereby water cannot be discharged through the outlet piping Tbetoreits passage i hrough the pipe section is prevented. This. result is due to the yielding connection 2O between the valve 17 and the valve 1l.

lliile l have herein shown and particularly described the preferred embodiment of my invention 1 do not wish to be limited to the precise details ot construction shown as changes may readily be made without departing from the spirit of my invention, butliaving thus described my invention l claim as new and desire to secure by Letters Patent the following:n-

1. A water heating and supply system inculding a supply tank; means for supplying water that is to be heated to said tank; piping serially onnected with said tank for the circulation of water; means upon the eX- terior of said piping for heating a portion here i; outlet piping branching from the aforesaid piping at a place between the norinal outlet of the tank and the heating means and provided with va ve for controlling the discharge or" water therefrom; a valve in the iirst aforesaid piping between the place oi connection oi the outlet piping therewith and the normal outlet end of said tank' and a third valve coupled with the second valve and normally obstructing dow of water to the outlet piping and actuatable by water flowing to the outlet piping to permit passage ot water to this piping and to close the second valve, whereby the flow of water through the lirst aforesaid piping may be reversed when water flows through the outlet piping.

Q. A'water heating and supply system including a supply tank; means for supplying water that is to be heated to said tank; piping serially connected with said tank for the circulation of water; means upon the eX- terior of said piping for heating a portion thereof; outlet piping branching from the aforesaid piping at a place between the tank and the heating means and provided with a valve for controlling the discharge of water therefrom; a valve in the first aforesaid piping between the place of connection of the outlet piping therewith and one end of said tant; and a third valve coupled with the second valve and normally obstructing flow of water to the outlet piping and actuatable by water owing to the outlet piping to permit passage ot water to this piping and to close the second valve.

3. A water heatino` and supply system including a supply tan r; means for supplying water that is to be heated to said tank; piping serially connected with said tank for the circulation of water; means upon the eX- terior ot said piping for heating a portion thereof; outlet piping branching from the aforesaid piping a place between the normal outlet oi the tank and the heating means and provided with a valve for controlling the discharge of water therefrom; a va'lve in the first aforesaid piping between the place of connection of the outlet piping therewith and the normal outlet end of said tank; and a third valve coupled with the second valve and normally obstructing flow of water to second valves being yielding to permit the second valve to be closed before the third valve is opened.

4. A water heating and supply system including a supply tank; means for supplying water that is to be heated to said tank; piping serially connected with said tank for the circulation of water; means upon the exterior of said piping for heating a portion thereof; outlet piping branching from the aforesaid piping at a place between the tank and the heating means and provided with a valve for controlling the discharge of water therefrom; a valve in the first aforesaid piping between the place of connection of the outlet piping therewith and one end of said tank; and a third valve coupled with the second valve and normally obstructing flow of water to the outlet piping and actuatable by water flowing to the outlet piping to permit passage of water to this piping and to close the second valve, the connection between the third and second valves being yielding to permit the second valve to be closed before the third valve is opened.

In witness whereof7 I have hereunto subscribed my name this 4th day of March A. 11,1918.

EUGENE GROVE.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

